Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying The Java Workshop
  • Table Of Contents Toc
  • Feedback & Rating feedback
The Java Workshop

The Java Workshop

By : David Cuartielles , Andreas Göransson, Foster-Johnson
3.1 (8)
close
close
The Java Workshop

The Java Workshop

3.1 (8)
By: David Cuartielles , Andreas Göransson, Foster-Johnson

Overview of this book

Java is a versatile, popular programming language used across a wide range of industries. Learning how to write effective Java code can take your career to the next level, and The Java Workshop will help you do just that. This book is designed to take the pain out of Java coding and teach you everything you need to know to be productive in building real-world software. The Workshop starts by showing you how to use classes, methods, and the built-in Collections API to manipulate data structures effortlessly. You’ll dive right into learning about object-oriented programming by creating classes and interfaces and making use of inheritance and polymorphism. After learning how to handle exceptions, you’ll study the modules, packages, and libraries that help you organize your code. As you progress, you’ll discover how to connect to external databases and web servers, work with regular expressions, and write unit tests to validate your code. You’ll also be introduced to functional programming and see how to implement it using lambda functions. By the end of this Workshop, you’ll be well-versed with key Java concepts and have the knowledge and confidence to tackle your own ambitious projects with Java.
Table of Contents (20 chapters)
close
close

Capturing the Output of a Child Process

We now have two different programs; one that can run by itself (Example05), and one that is executed from another one, which will also try to send information to it and capture its output. The purpose of this section is to capture the output from Example05 and print it out to a terminal.

To capture whatever is being sent by the child process to System.out, we need to create a BufferedReader in the parent class that will be fed from the InputStream that can be instantiated from the process. In other words, we need to enhance Example06 with the following:

InputStream in = process.getInputStream();
Reader reader = new InputStreamReader(in);
BufferedReader bufferedReader = new BufferedReader(reader);
String line = bufferedReader.readLine();
System.out.println(line);

The reason for needing a BufferedReader is that we are using the end of the line (EOL or "\n") as a marker for a message between processes. That allows the utilization...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
The Java Workshop
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon